1312277023 has 4 divisors (see below), whose sum is σ = 1323890208. Its totient is φ = 1300663840.

The previous prime is 1312277011. The next prime is 1312277041. The reversal of 1312277023 is 3207722131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312277023 - 2¹⁷ = 1312145951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312276982 and 1312277000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312277003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5806423 + ... + 5806648.

It is an arithmetic number, because the mean of its divisors is an integer number (330972552).

Almost surely, 2^1312277023 is an apocalyptic number.

1312277023 is a deficient number, since it is larger than the sum of its proper divisors (11613185).

1312277023 is a wasteful number, since it uses less digits than its factorization.

1312277023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613184.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 1312277023 is about 36225.3643597963. The cubic root of 1312277023 is about 1094.8177794263.

Adding to 1312277023 its reverse (3207722131), we get a palindrome (4519999154).

The spelling of 1312277023 in words is "one billion, three hundred twelve million, two hundred seventy-seven thousand, twenty-three".